import axios, { AxiosResponse, InternalAxiosRequestConfig } from "axios";
import { useUserStore } from "@/store/modules/user";
import { getToken, removeToken } from "@/utils/auth";
import { tansParams } from "@/utils/request";
import cache from "@/plugins/cache";
import { HttpStatus } from "@/enums/RespEnum";
import errorCode from "@/utils/errorCode";

// 是否显示重新登录
export const isRelogin = { show: false };

axios.defaults.headers["Content-Type"] = "application/json;charset=utf-8";
// 创建 axios 实例
const request = axios.create({
  baseURL: import.meta.env.VITE_APP_BASE_API,
  timeout: 50000,
});

// 请求拦截器
request.interceptors.request.use(
  (config: InternalAxiosRequestConfig) => {
    // 对应国际化资源文件后缀
    config.headers["Content-Language"] = "zh_CN";

    const isToken = (config.headers || {}).isToken === false;
    // 是否需要防止数据重复提交
    const isRepeatSubmit = (config.headers || {}).repeatSubmit === false;
    if (getToken() && !isToken) {
      config.headers["Authorization"] = "Bearer " + getToken(); // 让每个请求携带自定义token 请根据实际情况自行修改
    }
    // get请求映射params参数
    if (config.method === "get" && config.params) {
      let url = config.url + "?" + tansParams(config.params);
      url = url.slice(0, -1);
      config.params = {};
      config.url = url;
    }

    if (
      !isRepeatSubmit &&
      (config.method === "post" || config.method === "put")
    ) {
      const requestObj = {
        url: config.url,
        data:
          typeof config.data === "object"
            ? JSON.stringify(config.data)
            : config.data,
        time: new Date().getTime(),
      };
      const sessionObj = cache.session.getJSON("sessionObj");
      if (
        sessionObj === undefined ||
        sessionObj === null ||
        sessionObj === ""
      ) {
        cache.session.setJSON("sessionObj", requestObj);
      } else {
        const s_url = sessionObj.url; // 请求地址
        const s_data = sessionObj.data; // 请求数据
        const s_time = sessionObj.time; // 请求时间
        const interval = 1000; // 间隔时间(ms)，小于此时间视为重复提交
        if (
          s_data === requestObj.data &&
          requestObj.time - s_time < interval &&
          s_url === requestObj.url
        ) {
          const message = "数据正在处理，请勿重复提交";
          console.warn(`[${s_url}]: ` + message);
          return Promise.reject(new Error(message));
        } else {
          cache.session.setJSON("sessionObj", requestObj);
        }
      }
    }
    // FormData数据去请求头Content-Type
    if (config.data instanceof FormData) {
      delete config.headers["Content-Type"];
    }
    return config;
  },
  (error: any) => {
    console.log(error);
    return Promise.reject(error);
  },
);

// 响应拦截器
request.interceptors.response.use(
  (res: AxiosResponse) => {
    // 未设置状态码则默认成功状态
    const code = res.data.code || HttpStatus.SUCCESS;
    // 获取错误信息
    const msg = errorCode[code] || res.data.msg || errorCode["default"];
    // 二进制数据则直接返回
    if (
      res.request.responseType === "blob" ||
      res.request.responseType === "arraybuffer"
    ) {
      return res.data;
    }
    if (code === HttpStatus.UNAUTHORIZED) {
      // prettier-ignore
      if (!isRelogin.show) {
        isRelogin.show = true;
        ElMessageBox.confirm('登录状态已过期，请重新登录', '系统提示', {
          confirmButtonText: '重新登录',
          // cancelButtonText: '取消',
          type: 'warning',
          showCancelButton: false,
        }).then(() => {
          isRelogin.show = false;
          removeToken();
          useUserStore().logout().then(() => {
              location.href = import.meta.env.VITE_APP_CONTEXT_PATH + '#index';
            });
        }).catch(() => {
          isRelogin.show = false;
        });
      }
      return;
      // return Promise.reject('无效的会话，或者会话已过期，请重新登录。');
    } else if (code === HttpStatus.SERVER_ERROR) {
      console.log(msg);
      ElMessage({ message: msg, type: "error" });
      return Promise.reject(new Error(msg));
    } else if (code === HttpStatus.WARN) {
      ElMessage({ message: msg, type: "warning" });
      return Promise.reject(new Error(msg));
    } else if (code !== HttpStatus.SUCCESS) {
      ElNotification.error({ title: msg });
      return Promise.reject("error");
    } else {
      return Promise.resolve(res.data);
    }
  },
  (error: any) => {
    let { message } = error;
    if (message == "Network Error") {
      message = "后端接口连接异常";
    } else if (message.includes("timeout")) {
      message = "系统接口请求超时";
    } else if (message.includes("Request failed with status code")) {
      message = "系统接口" + message.substr(message.length - 3) + "异常";
    }
    ElMessage({ message: message, type: "error", duration: 5 * 1000 });
    return Promise.reject(error);
  },
);

// 导出 axios 实例
export default request;
